A portable earphone package
With a dual-fixing structure of arc-shaped buckles and fixing components, combined with an adjustable wrist strap design, the problem of unstable headphone fixation and fixed wrist strap length in the headphone case is solved, achieving stable headphone fixation and adaptability to multiple scenarios, improving service life and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HONGRUI PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
In existing headphone cases, the headphones are prone to coming loose due to unstable elastic bands, leading to friction damage. Furthermore, the fixed length of the wrist strap cannot meet the needs of different usage scenarios, affecting the lifespan and portability.
The device employs a dual-fixing structure consisting of an arc-shaped buckle and a fixing component, combined with an adjustable wrist strap design. The arc-shaped buckle is driven to rotate by rotating the lever and rack, achieving a secure fixation of the headphones. The extension and retraction component uses a ratchet and pawl to adjust the wrist strap length, meeting the carrying needs of different scenarios.
It achieves a secure hold for the headphones, reduces the risk of friction damage, extends their lifespan, and meets the needs of various usage scenarios with an adjustable wristband, improving portability and user experience.
Smart Images

Figure CN224555765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of headphone packaging technology, and in particular to a portable headphone case. Background Technology
[0002] With the widespread use of smart devices, headphones have become an indispensable audio device in people's daily lives. As a storage tool for headphones, headphone cases are receiving increasing attention for their functionality and portability. There are many problems that need to be solved in the existing headphone case designs.
[0003] Currently, most headphone cases use elastic bands to secure the headphones. Users must first pull or untie the elastic bands before placing the headphones in, and then rely on the elastic bands to hold them in place. However, when users carry the headphone case outdoors, the frequent movement of the case can cause the headphones to easily break free from the elastic bands, leading to friction and collisions between the headphones and other items inside the case. This can result in scratches on the headphone surface, damage to components, and affect the headphone's lifespan and user experience. Furthermore, although some headphone cases are equipped with wrist straps for easy carrying, these straps are usually of fixed length and cannot meet the needs of users in different scenarios. For example, when cycling outdoors, if a user wants to wear the headphone case on their back, the fixed-length wrist straps cannot be extended, making it difficult to wear the case comfortably and causing significant inconvenience.
[0004] Therefore, it is necessary to provide a new portable headphone case to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a portable headphone case.
[0006] The portable headphone case provided by this utility model includes: a headphone case body, an arc-shaped buckle, a fixing component, a mounting box, and a storage component. The headphone case body has a foam lining inside and a wrist strap installed on the outer wall. The arc-shaped buckles for fixing the headphones are symmetrically installed inside the foam lining. The fixing component is installed between the foam lining and the arc-shaped buckles. The fixing component drives the arc-shaped buckles to rotate to fix the headphones. The mounting box is installed on the outer wall of the headphone case body. The storage component is installed between the mounting box and the wrist strap. The storage component is used to adjust the length of the wrist strap.
[0007] Preferably, the fixing components include: a fixing plate, a rack and an arc-shaped push plate. The fixing plate is fixedly connected to the inside of the foam liner. The rack is symmetrically slidably connected to the top of the fixing plate. The rack is engaged with the corresponding arc-shaped buckle. The top of the opposite ends of the rack is fixedly connected to the arc-shaped push plate.
[0008] Preferably, tension springs are symmetrically fixedly connected between the two opposing ends of the racks, and a mounting base is fixedly connected to the top center of the fixing plate. The mounting base has symmetrically opened circular grooves inside, and springs are fixedly connected to the inner walls of the circular grooves. The other end of each spring is fixedly connected to a locking block, and the locking block is slidably connected to the corresponding inner wall of the circular groove.
[0009] Preferably, the mounting base has a rotating rod rotatably connected inside, and a rotating block is fixedly connected to the other end of the rod through the foam lining. The outer wall of the rotating rod has slots equidistantly opened near the bottom end, and the locking block engages with the corresponding slot. A diamond-shaped block is fixedly connected to the outer wall of the rotating rod, and its position corresponds to the arc-shaped push plate.
[0010] Preferably, the retractable assembly includes: a storage rod, a spiral spring, a ratchet, and a pawl. The storage rod is rotatably connected to the inside of the mounting box. Spiral springs are symmetrically installed on the outer wall of the storage rod. Both ends of the storage rod are fixedly connected to ratchet. Pawls are symmetrically installed on the inner wall of the mounting box, which cooperate with the corresponding ratchet. Springs are fixedly connected to the side walls of the pawls. The other end of each spring is fixedly connected to the inner wall of the mounting box.
[0011] Preferably, both ends of the mounting box are slidably connected to a push cylinder, and the inner wall of each push cylinder is fixedly connected to a push rod. The other end of the push rod is designed with an inclined surface and is located below the corresponding pawl.
[0012] Preferably, one end of the wrist strap passes through the mounting box and wraps around the outer wall of the storage rod, while the other end is fixedly connected to an elastic buckle. Two clips are fixedly connected to the outer wall of the headphone case body, one of which is located on one side of the mounting box and the other is located on the side of the headphone case body away from the mounting box.
[0013] Preferably, the top of the foam liner is symmetrically fixed with an elastic band, the other end of which is fixedly connected to a corresponding arc-shaped buckle.
[0014] Compared with related technologies, the portable headphone case provided by this utility model has the following advantages: Regarding headphone securing, compared to the traditional method of simply binding with elastic bands, its securing components achieve a double-secure fixation for the headphones. When storing the headphones, rotating the lever causes the diamond-shaped block to rotate, which in turn moves the rack and drives the arc-shaped buckle to rotate. Combined with the tension of the spring and the snap-fit positioning of the spring block and the slot, the arc-shaped buckle accurately and firmly secures the headphones in the placement slot of the foam lining. At the same time, the elastic band connected to the arc-shaped buckle is stretched synchronously, further enhancing the fixing effect. This double-fixing structure prevents the headphones from slipping out of the case even when the bag is frequently shaken outdoors, reducing friction and collision between the headphones and other items in the bag. This reduces the risk of scratches on the headphone surface and damage to components, significantly extending the lifespan of the headphones and improving the user experience. Regarding the wrist strap, the retractable design allows for flexible adjustment of the strap length, meeting users' carrying needs in different scenarios. When carrying the bag over the shoulder, simply pull the wrist strap; the ratchet and pawl will engage to secure it to the desired length. The elastic buckle then connects to the corresponding ferrule for a comfortable carrying experience, especially suitable for outdoor cycling. When shortening the wrist strap, press the button to disengage the pawl from the ratchet, and the spiral spring will automatically rotate the retracting rod to retract the wrist strap – a convenient operation. This adjustable wrist strap design breaks the limitations of traditional fixed-length wrist straps, significantly improving the portability and flexibility of the headphone case. Attached Figure Description
[0015] Figure 1 A schematic diagram of the structure of the portable headphone case provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the headphone case. Figure 3 for Figure 2 The diagram shows a cross-section of the foam liner. Figure 4 for Figure 3 The diagram shows the structure of the fixing plate. Figure 5 for Figure 4 The diagram shows the structure at point A. Figure 6 for Figure 3 The diagram shown illustrates the structure of the wristband. Figure 7 for Figure 6 The diagram shows the structure at point B.
[0016] The following are labeled in the diagram: 1. Headphone case body; 2. Foam lining; 3. Wrist strap; 4. Arc-shaped buckle; 5. Mounting box; 6. Fixing plate; 7. Rack and pinion; 8. Arc-shaped push plate; 9. Tension spring; 10. Spring 1; 11. Locking block; 12. Rotating rod; 13. Diamond block; 14. Storage rod; 15. Scroll spring; 16. Ratchet; 17. Pawl; 18. Spring 2; 19. Button; 20. Top rod; 21. Elastic buckle; 22. Clip; 23. Elastic band. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0019] Please see Figures 1 to 7 A portable headphone case includes: a headphone case body 1, an arc-shaped buckle 4, a fixing component, a mounting box 5, and a storage component. The headphone case body 1 has an internal foam lining 2 and an outer wall with a wrist strap 3. The interior of the foam lining 2 has symmetrically installed arc-shaped buckles 4 for securing the headphones. A fixing component is installed between the foam lining 2 and the arc-shaped buckles 4, driving the arc-shaped buckles 4 to rotate and secure the headphones. The outer wall of the headphone case body 1 has a mounting box 5, and a storage component is installed between the mounting box 5 and the wrist strap 3. The storage component is used to adjust the length of the wrist strap 3. The fixing component includes: a fixing plate 6, a rack 7, and an arc-shaped push plate 8. The fixing plate 6 is fixedly connected to the interior of the foam lining 2. The top of the fixing plate 6 is symmetrically slidably connected to the rack 7, which engages with the corresponding arc-shaped buckles 4. An arc-shaped push plate 8 is fixedly connected to the top of each of the two racks 7. A tension spring 9 is symmetrically fixedly connected between the opposing ends of the racks 7. A mounting base is fixedly connected to the center of the top of the mounting plate 6. A circular groove is symmetrically opened inside the mounting base. A spring 10 is fixedly connected to the inner wall of each circular groove. A locking block 11 is fixedly connected to the other end of each spring 10. The locking block 11 is slidably connected to the inner wall of the corresponding circular groove. A rotating rod 12 is rotatably connected inside the mounting base. A rotating block is fixedly connected to the other end of the rod 12 through the foam liner 2. A locking groove is equidistantly opened on the outer wall of the rotating rod 12 near the bottom. The locking block 11 engages with the corresponding locking groove. A diamond-shaped block 13 is fixedly connected to the outer wall of the rotating rod 12, and its position corresponds to the arc-shaped push plate 8. An elastic band 23 is symmetrically fixedly connected to the top of the foam liner 2. Its other end is fixedly connected to the corresponding arc-shaped buckle 4.
[0020] It should be noted that: the headphone case body 1 is made of waterproof material, the inside of the foam lining 2 has a headphone placement slot and a storage slot, the top of the fixing plate 6 is equipped with a fixing piece near the arc-shaped buckle 4 to fix the position of the arc-shaped buckle 4, and the inside of the foam lining 2 has an arc-shaped groove that allows the arc-shaped buckle 4 to move.
[0021] Please see Figure 3 , Figure 6 and Figure 7The retractable assembly includes: a storage rod 14, a spiral spring 15, a ratchet 16, and a pawl 17. The storage rod 14 is rotatably connected inside the mounting box 5. Spiral springs 15 are symmetrically installed on the outer wall of the storage rod 14. Both ends of the storage rod 14 are fixedly connected to ratchet 16. Pawls 17 are symmetrically installed on the inner wall of the mounting box 5, and they are installed in conjunction with the corresponding ratchet 16. Springs 18 are fixedly connected to the side walls of the pawls 17, and the other end of each spring 18 is fixedly connected to the inner wall of the mounting box 5. Both ends of the mounting box 5 are slidably connected to the push cylinder 19, and the inner wall of the push cylinder 19 is fixedly connected to the top rod 20. The other end of the top rod 20 is designed with a bevel and is located below the corresponding pawl 17. One end of the wrist strap 3 passes through the mounting box 5 and is wrapped around the outer wall of the storage rod 14, and the other end is fixedly connected to the elastic buckle 21. The outer wall of the headphone case body 1 is fixedly connected to two card sleeves 22, one of which is located on one side of the mounting box 5 and the other is located on the side of the headphone case body 1 away from the mounting box 5. It should be noted that when the length of the wrist strap 3 needs to be extended to carry the headphone bag, pulling the wrist strap 3 will cause the storage rod 14 to rotate. The spiral springs 15 symmetrically installed on its outer wall will gradually accumulate force. At the same time, the ratchet 16 fixedly connected to both ends of the storage rod 14 will also rotate. The pawl 17 installed in cooperation with it will continuously engage with the teeth on the ratchet 16 under the elastic force of the second spring 18. After pulling the wrist strap 3 to the appropriate length, the pulling will stop. With the cooperation of the ratchet 16 and the pawl 17, the length of the wrist strap 3 is stably fixed.
[0022] The working principle of the portable headphone case provided by this utility model is as follows: When storing the headphones, first open the headphone case body 1 to expose the inner foam lining 2 and related structures. Then, rotate the rotating block fixed at the top of the rotating rod 12, turning it 90 degrees in any direction. The rotating rod 12 will rotate synchronously, and the diamond-shaped block 13 fixed at its bottom will also rotate. During the rotation of the diamond-shaped block 13, it will push the symmetrically arranged arc-shaped push plates 8. Since the arc-shaped push plates 8 are fixedly installed at the opposite ends of the rack 7, this causes the rack 7 to slide away from each other on the fixed plate 6, simultaneously stretching the tension spring 9 symmetrically fixed between the opposite ends of the two racks 7. During this period, the inner walls of the slots equidistantly opened at the bottom of the rotating rod 12 will press against the inner circular groove of the mounting base. The locking block 11 moves within the circular groove and compresses the spring 10, thereby disengaging from the currently engaged slot. When the rotating rod 12 rotates 90 degrees, the locking block 11, under the elastic force of the spring 10, will re-engage with the slot adjacent to the bottom of the rotating rod 12, thus fixing the position of the rotating rod 12. During the movement of the rack 7, it will push the arc-shaped buckle 4 that meshes with it to rotate, causing the arc-shaped buckle 4 to release its fixation on the headphone placement slot inside the foam liner 2. The elastic band 23 will move to one side of the headphone placement slot as the arc-shaped buckle 4 rotates, making room for placing the headphones. Next, place the earphones in the earphone placement slot inside the foam lining 2; then, continue to rotate the rotating block 90 degrees in any direction, so that the locking block 11 inside the mounting base engages with the adjacent locking slot again; at this time, the diamond-shaped block 13 at the bottom of the rotating rod 12 rotates to a position perpendicular to the rack 7. Under the action of the tension spring 9, the rack 7 will drive the arc-shaped push plate 8 to move closer to each other, and at the same time drive the arc-shaped buckle 4 that meshes with it to rotate in the opposite direction, thereby firmly fixing the earphones in the earphone placement slot; the elastic band 23 fixedly connected to the arc-shaped buckle 4 will also be stretched, and together with the arc-shaped buckle 4, it will play a double fixing role for the earphones, ensuring that the earphones will not shake easily; finally, close the earphone case body 1 to complete the earphone storage; When the length of the wrist strap 3 needs to be extended to carry the headphone bag, first pull the elastic buckle 21 out of the sleeve 22 on one side of the mounting box 5; then pull the wrist strap 3. Since the other end of the wrist strap 3 is wrapped around the rotating storage rod 14 inside the mounting box 5, the storage rod 14 will rotate during the pulling process, and the spiral springs 15 symmetrically installed on its outer wall will gradually store force to prepare power for the subsequent storage of the wrist strap 3; at the same time, the ratchet 16 fixedly connected to both ends of the storage rod 14 will also rotate, and the pawl 17 installed with it will also rotate. Under the elastic force of spring 18, it will continuously engage with the teeth on ratchet 16, thus preventing the wristband 3 from automatically retracting due to the action of the spiral spring 15 after the pulling is stopped; after the wristband 3 is pulled to a suitable length and the pulling is stopped, the length of the wristband 3 is stably fixed with the cooperation of ratchet 16 and pawl 17; at this time, the elastic buckle 21 fixedly connected to one end of the wristband 3 is inserted into the card sleeve 22 on the side of the headphone bag body 1 away from the mounting box 5, and the wristband 3 is extended to meet the needs of carrying it on the back; When the length of the wristband 3 needs to be shortened, first pull out the elastic buckle 21 fixed at one end of the wristband 3 from the corresponding sleeve 22; then press the push cylinder 19 that slides between the two ends of the mounting box 5. The movement of the push cylinder 19 will cause the push rod 20 fixedly connected to its inner wall to move together; since one end of the push rod 20 is designed with a slope and is located below the pawl 17, when the push rod 20 moves, it will push the pawl 17 to rotate around its rotating connection and compress the spring 18 until the pawl 17 disengages from the ratchet 16. Once disengaged, the spiral spring 15 releases its stored elasticity, causing the storage rod 14 to rotate and wrap the wristband 3 around it. When the wristband 3 is stored to the appropriate length, the button cylinder 19 is released. Under the elastic force of the second spring 18, the pawl 17 rotates in the opposite direction and pushes the top rod 20 to reset. At this time, the pawl 17 re-engages with the ratchet 16, completing the storage of the wristband 3. Finally, the elastic buckle 21 fixed at one end of the wristband 3 is inserted into the sleeve 22 on one side of the mounting box 5.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A portable headphone case, characterized in that, include: The headphone case body (1) has a foam lining (2) inside and a wrist strap (3) installed on the outer wall. Arc-shaped buckles (4) are symmetrically installed inside the foam liner (2) for fixing the headphones. A fixing component is installed between the foam liner (2) and the arc-shaped buckle (4), and the fixing component drives the arc-shaped buckle (4) to rotate to fix the earphone; Mounting box (5), the outer wall of the headphone case body (1) is fitted with mounting box (5); An extension / retraction assembly is installed between the mounting box (5) and the wristband (3). The extension / retraction assembly is used to adjust the length of the wristband (3).
2. The portable headphone case according to claim 1, characterized in that, The fixing components include: a fixing plate (6), a rack (7) and an arc-shaped push plate (8). The fixing plate (6) is fixedly connected inside the foam liner (2). The rack (7) is symmetrically slidably connected to the top of the fixing plate (6). The rack (7) is engaged with the corresponding arc-shaped buckle (4). The top of the opposite ends of the rack (7) is fixedly connected to the arc-shaped push plate (8).
3. The portable headphone case according to claim 2, characterized in that, A tension spring (9) is symmetrically fixedly connected between the two opposing ends of the racks (7). A mounting base is fixedly connected at the top center of the fixing plate (6). A circular groove is symmetrically opened inside the mounting base. A spring (10) is fixedly connected to the inner wall of each circular groove. A locking block (11) is fixedly connected to the other end of each spring (10), and the locking block (11) is slidably connected to the inner wall of the corresponding circular groove.
4. The portable headphone case according to claim 3, characterized in that, The mounting base has a rotating rod (12) inside, and the other end of the rod is fixedly connected to a rotating block through the foam liner (2). The outer wall of the rotating rod (12) is provided with slots at equal intervals near the bottom. The locking block (11) engages with the corresponding slot. The outer wall of the rotating rod (12) is fixedly connected with a rhomboid block (13), and its position corresponds to the arc-shaped push plate (8).
5. The portable headphone case according to claim 1, characterized in that, The retractable assembly includes: a storage rod (14), a spiral spring (15), a ratchet (16), and a pawl (17). The storage rod (14) is rotatably connected inside the mounting box (5). The spiral spring (15) is symmetrically installed on the outer wall of the storage rod (14). Both ends of the storage rod (14) are fixedly connected to the ratchet (16). The pawl (17) is symmetrically installed on the inner wall of the mounting box (5) and is installed in conjunction with the corresponding ratchet (16). The side wall of the pawl (17) is fixedly connected to the second spring (18). The other end of the second spring (18) is fixedly connected to the inner wall of the mounting box (5).
6. The portable headphone case according to claim 5, characterized in that, Both ends of the mounting box (5) are slidably connected to the push cylinder (19), and the inner wall of the push cylinder (19) is fixedly connected to the push rod (20). The other end of the push rod (20) is designed with a slope and is located below the corresponding pawl (17).
7. The portable headphone case according to claim 5, characterized in that, One end of the wrist strap (3) passes through the mounting box (5) and is wrapped around the outer wall of the storage rod (14), while the other end is fixedly connected to an elastic buckle (21). Two clips (22) are fixedly connected to the outer wall of the headphone bag body (1), one of which is located on one side of the mounting box (5) and the other is located on the side of the headphone bag body (1) away from the mounting box (5).
8. The portable headphone case according to claim 1, characterized in that, The top of the foam liner (2) is symmetrically fixed with an elastic band (23), and the other end of the band is fixedly connected to the corresponding arc-shaped buckle (4).